Heading 8409: Parts suitable for use solely or principally with the engines of heading 8407 or 8408
Every line of heading 8409 in the U.S. Harmonized Tariff Schedule, with its general (column 1) duty rate. Open a code for the landed cost calculator, trade agreement rates and email alerts if the rate changes.
Parts suitable for use solely or principally with the engines of heading 8407 or 8408
Chapter 84: Machinery, mechanical appliances, boilers and nuclear reactors. Schedule checked on November 8, 2026.
Not always the total: additional chapter 99 duties (such as Section 232 or Section 301), antidumping or countervailing duties may apply depending on the country of origin. See recent chapter 99 changes →
Tariff lines
| HTS code | Official description | General rate |
|---|---|---|
| 8409.10.00 | For aircraft engines | Free |
| 8409.10.00.40 | For use in civil aircraft | |
| 8409.10.00.80 | Other | |
| 8409.91 | Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines): | |
| 8409.91.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free |
| 8409.91.10.40 | For vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | |
| 8409.91.10.60 | For marine propulsion engines | |
| 8409.91.10.80 | Other | |
| 8409.91.30.00 | Aluminum cylinder heads | 2.5% |
| 8409.91.50 | Other | 2.5% |
| 8409.91.50.10 | Connecting rods | |
| 8409.91.50.81 | Steel forgings | |
| 8409.91.50.85 | Other | |
| 8409.91.92 | For marine propulsion engines | 2.5% |
| 8409.91.92.10 | Connecting rods | |
| 8409.91.92.90 | Other | |
| 8409.91.99 | Other | 2.5% |
| 8409.91.99.10 | Connecting rods | |
| 8409.91.99.90 | Other | |
| 8409.99 | Other: | |
| 8409.99.10 | Cast-iron parts, not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery | Free |
| 8409.99.10.40 | For vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | |
| 8409.99.10.60 | For marine propulsion engines | |
| 8409.99.10.80 | Other | |
| 8409.99.91 | To be installed in vehicles of subheading 8701.21, 8701.22, 8701.23, 8701.24 or 8701.29, or heading 8702, 8703 or 8704 | 2.5% |
| 8409.99.91.10 | Connecting rods | |
| 8409.99.91.90 | Other | |
| 8409.99.92 | For marine propulsion engines | 2.5% |
| 8409.99.92.10 | Connecting rods | |
| 8409.99.92.90 | Other | |
| 8409.99.99 | Other | Free |
| 8409.99.99.10 | Connecting rods | |
| 8409.99.99.90 | Other |
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Exporting this product from the U.S.?
Exports are reported with Schedule B numbers. Heading 8409 has 8 of them. Schedule B lookup →
- 8409.10.0040PARTS FOR SPARK-IGNITION OR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR USE IN CIVIL AIRCRAFT
- 8409.10.0080PARTS FOR SPARK-IGNITION OR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR USE IN AIRCRAFT EXCEPT CIVIL
- 8409.91.4000PARTS FOR SPARK-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR USE IN ROAD TRACTORS, MOTOR BUSES, AUTOMOBILES OR TRUCKS
- 8409.91.6000PARTS FOR SPARK-IGNITION INTERNAL COMBUSTION PISTON ENGINES FOR MARINE PROPULSION
- 8409.91.8000PARTS FOR SPARK-IGNITION INTERNAL COMBUSTION PISTON ENGINES, NESOI
- 8409.99.4000PARTS FOR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL) FOR USE IN ROAD TRACTORS, MOTOR BUSES, AUTOMOBILES OR TRUCKS
- 8409.99.6000PARTS FOR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL) FOR MARINE PROPULSION
- 8409.99.8000PARTS FOR COMPRESSION-IGNITION INTERNAL COMBUSTION PISTON ENGINES (DIESEL), NESOI
Source: U.S. International Trade Commission, Harmonized Tariff Schedule; Schedule B: U.S. Census Bureau. Information only, not legal or customs advice; U.S. Customs and Border Protection decides the classification and the duty. Confirm with a licensed customs broker before you ship.
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